fix #22353: Bass clef appears in drums
fix #22351: Bass stave of multi-stave instrument imports as Grand Piano
fix #22358: 15/8 meter support
fix #22443: Reword clef change option
Test for 15/8 time sig
Merge pull request #453 from trig-ger/midi_import

Fixes for MIDI import
fix #22521: Barline of tablature preview in Staff types too long
fix layout of interval spinbox in Style -> Numbers
a bit less space between ledger lines
fix #3056: change the way MuseScore guess which notes to enter
fix #22540: better warnings fo file not found when opening via Open Recent